cris.boxmetadata.label.title
Principal Component Analysis as an exploration tool for kinetic modeling of food quality: A case study of a dried apple cluster snack
cris.boxmetadata.label.dateissued
28 browse.startsWith.months.june 2013
cris.boxmetadata.label.accesslevel
metadata only access
cris.boxmetadata.label.resourcetype
journal article
cris.boxmetadata.label.authors
Saavedra J.
Córdova A.
GALVEZ RANILLA, LENA
Quezada C.
Navarro R.
Pontificia Universidad Católica de Valparaíso
cris.boxmetadata.label.abstract
A Multivariate Accelerated shelf-life Testing (MALST) study of a dried apple cereal-like snack (commercially known as cluster) stored at 18 C, 25 C or 35 C for 17.5 months was conducted. The measured attributes were water activity (Aw), color DE, moisture and sensory properties (aroma, taste, texture and color). The data were deployed to adjust the multivariate kinetics (including the interactions of the attributes) using Principal Component Analysis (PCA), and the results were compared to those obtained using a univariate kinetic model. The predicted shelf-life for the reference storage condition obtained using the multivariate model was 18.3 months, whereas a predicted shelf-life of 15.6 months was obtained using the univariate model. Thus, although the results of both methods are similar, the multivariate kinetic model revealed all of the product shelf-life attributes and their interactions. Finally, the multivariate model reflected the variability of the biochemical phenomena underlying product degradation. © 2013 Elsevier Inc. All rights reserved.
cris.boxmetadata.label.citationstartpage
229
cris.boxmetadata.label.citationendpage
235
cris.boxmetadata.label.volume
119
cris.boxmetadata.label.issue
2
cris.boxmetadata.label.language
English
cris.boxmetadata.label.ocdeknowledgeArea
Alimentos y bebidas
cris.boxmetadata.label.doi
cris.boxmetadata.label.scopusidentifier
2-s2.0-84879284762
cris.boxmetadata.label.source
Journal of Food Engineering
cris.boxmetadata.label.containerissn
02608774
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